The Home Depot might require an item needs to be WERC certified if any of the hazmat questions are answered with a 'Yes' during the regular enrichment or if the item is in a deemed hazmat category (such as batteries).
More information can be found at:
https://wercsmart.freshdesk.com/en/support/home
Tip: You can filter for Hazmat attributes by selecting the Filter icon, selecting Hazmat, and selecting Apply.